Report updated Apr 23, 2026
Cardiogram
For casual users seeking continuous, passive heart rate monitoring and physiological insights throughout the day.
Overview · Full Intel report in progress
Cardiogram is an established health & fitness app that is a paid app. With a 1.4/5 rating from 5 reviews, it shows polarized user reception.
What is Cardiogram?
Current Momentum
v3.5
Made instructions on how to use the Apple Watch companion app. Added better messaging around HealthKit errors.
Competition
Rivals identification in progress
7-Day Rank Pulse 🇺🇸
Health & FitnessRating Pulse 🇺🇸
What makes this app unique?
Loading...
What Are The Key Features?
Displays a smooth, scrolling visual representation of heart rate data directly on the Apple Watch.
Monitors key metrics including energy burn, breathing rate, and heart rate variability.
Focuses on passive, moment-to-moment data collection without requiring the user to start or manage workout sessions.
Provides an optional secondary interface to mirror and view heart data on a larger screen.
How much does it cost?
Who Built It?
JOhn Lyons
Developing specialized Apple Watch-first arcade games and health utilities optimized for wearable hardware and short-session play.
Portfolio
13
Apps
What other apps does JOhn Lyons make?
Explore the full JOhn Lyons report
Portfolio breakdown, audience, momentum, and every app published by JOhn Lyons.
Analysis in progress, available soon
What do users think recently?
Analysis in progress, available soon
View the full user-sentiment analysis
Mood gauge, ratings & review-volume history, every praise / complaint / request, and sentiment over time.
Analysis in progress, available soon
What is the competitive landscape for Cardiogram?
How's The Health & Fitness Market?
How does it evolve in the Health & Fitness market?
Rank progression
32 active rankings tracked — 30-day window
Strategic analysis coming soon
SWOT, key takeaways & outlook
The outtake for Cardiogram
Key Takeaways
Cardiogram is a specialized, paid utility that prioritizes passive, continuous heart rate observation over active fitness tracking.
Where Is It Heading?
Trend analysis
Available very soon